The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 2010
Filed:
Oct. 04, 2007
Ball valve with a rotatable body capable of being kept out of substantial contact with a seat member
Kozi Ohta, Osaka, JP;
Kozi Ohta, Osaka, JP;
Hisaka Works, Ltd., Osaka, JP;
Abstract
A ball valve having a reduced sized is provided, that includes a first shaft that extends into a housing accommodating a valve body along a rotational axis of the valve body and is connected to the valve body; and a second shaft that extends into the housing to be oppositely located to the first shaft and is rotatable about an axis line, and has a pressing part that projects radially outwardly from at least a part of the outer circumference of the second shaft. The ball valve is capable of instantly and securely opening and closing communication passages, and changing the direction of fluid flow, while being capable of minimizing the wearing of a seat member for shutting off the communication passages, by having a valve body rotatable while being kept out of contact or substantial contact with the seat member.